1 /* *INDENT-OFF* */ /* ATTRIBUTE_PRINTF confuses indent, avoid running it
3 /* I/O, string, cleanup, and other random utilities for GDB.
4 Copyright (C) 1986-2016 Free Software Foundation, Inc.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
24 #include "exceptions.h"
25 #include "common/scoped_restore.h"
28 extern void initialize_utils (void);
30 /* String utilities. */
32 extern int sevenbit_strings;
34 extern int strcmp_iw (const char *, const char *);
36 extern int strcmp_iw_ordered (const char *, const char *);
38 extern int streq (const char *, const char *);
40 extern int subset_compare (char *, char *);
42 int compare_positive_ints (const void *ap, const void *bp);
43 int compare_strings (const void *ap, const void *bp);
45 /* A wrapper for bfd_errmsg to produce a more helpful error message
46 in the case of bfd_error_file_ambiguously recognized.
47 MATCHING, if non-NULL, is the corresponding argument to
48 bfd_check_format_matches, and will be freed. */
50 extern const char *gdb_bfd_errmsg (bfd_error_type error_tag, char **matching);
52 /* Reset the prompt_for_continue clock. */
53 void reset_prompt_for_continue_wait_time (void);
54 /* Return the time spent in prompt_for_continue. */
55 std::chrono::steady_clock::duration get_prompt_for_continue_wait_time ();
57 /* Parsing utilites. */
59 extern int parse_pid_to_attach (const char *args);
61 extern int parse_escape (struct gdbarch *, const char **);
63 char **gdb_buildargv (const char *);
65 /* Cleanup utilities. */
67 extern struct cleanup *make_cleanup_freeargv (char **);
70 extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *);
73 extern struct cleanup *
74 make_cleanup_ui_out_redirect_pop (struct ui_out *uiout);
76 struct section_addr_info;
77 extern struct cleanup *(make_cleanup_free_section_addr_info
78 (struct section_addr_info *));
80 /* For make_cleanup_close see common/filestuff.h. */
82 extern struct cleanup *make_cleanup_fclose (FILE *file);
84 extern struct cleanup *make_cleanup_bfd_unref (bfd *abfd);
87 extern struct cleanup *make_cleanup_obstack_free (struct obstack *obstack);
89 extern struct cleanup *make_cleanup_restore_integer (int *variable);
90 extern struct cleanup *make_cleanup_restore_uinteger (unsigned int *variable);
93 extern struct cleanup *make_cleanup_unpush_target (struct target_ops *ops);
95 extern struct cleanup *make_cleanup_value_free_to_mark (struct value *);
96 extern struct cleanup *make_cleanup_value_free (struct value *);
99 extern struct cleanup *make_cleanup_free_so (struct so_list *so);
101 extern struct cleanup *make_cleanup_restore_current_language (void);
103 extern struct cleanup *make_cleanup_htab_delete (htab_t htab);
106 extern struct cleanup *make_cleanup_clear_parser_state
107 (struct parser_state **p);
109 extern void free_current_contents (void *);
111 extern void init_page_info (void);
113 extern struct cleanup *make_cleanup_restore_page_info (void);
114 extern struct cleanup *
115 set_batch_flag_and_make_cleanup_restore_page_info (void);
117 extern struct cleanup *make_bpstat_clear_actions_cleanup (void);
119 /* Path utilities. */
121 extern char *gdb_realpath (const char *);
123 extern char *gdb_realpath_keepfile (const char *);
125 extern char *gdb_abspath (const char *);
127 extern int gdb_filename_fnmatch (const char *pattern, const char *string,
130 extern void substitute_path_component (char **stringp, const char *from,
133 char *ldirname (const char *filename);
135 extern int count_path_elements (const char *path);
137 extern const char *strip_leading_path_elements (const char *path, int n);
139 /* GDB output, ui_file utilities. */
143 extern int query (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
144 extern int nquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
145 extern int yquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
147 extern void begin_line (void);
149 extern void wrap_here (const char *);
151 extern void reinitialize_more_filter (void);
153 extern int pagination_enabled;
155 extern struct ui_file **current_ui_gdb_stdout_ptr (void);
156 extern struct ui_file **current_ui_gdb_stdin_ptr (void);
157 extern struct ui_file **current_ui_gdb_stderr_ptr (void);
158 extern struct ui_file **current_ui_gdb_stdlog_ptr (void);
160 /* The current top level's ui_file streams. */
163 #define gdb_stdout (*current_ui_gdb_stdout_ptr ())
165 #define gdb_stdin (*current_ui_gdb_stdin_ptr ())
166 /* Serious error notifications */
167 #define gdb_stderr (*current_ui_gdb_stderr_ptr ())
168 /* Log/debug/trace messages that should bypass normal stdout/stderr
169 filtering. For moment, always call this stream using
170 *_unfiltered. In the very near future that restriction shall be
171 removed - either call shall be unfiltered. (cagney 1999-06-13). */
172 #define gdb_stdlog (*current_ui_gdb_stdlog_ptr ())
174 /* Truly global ui_file streams. These are all defined in main.c. */
176 /* Target output that should bypass normal stdout/stderr filtering.
177 For moment, always call this stream using *_unfiltered. In the
178 very near future that restriction shall be removed - either call
179 shall be unfiltered. (cagney 1999-07-02). */
180 extern struct ui_file *gdb_stdtarg;
181 extern struct ui_file *gdb_stdtargerr;
182 extern struct ui_file *gdb_stdtargin;
184 /* Set the screen dimensions to WIDTH and HEIGHT. */
186 extern void set_screen_width_and_height (int width, int height);
188 /* More generic printf like operations. Filtered versions may return
189 non-locally on error. */
191 extern void fputs_filtered (const char *, struct ui_file *);
193 extern void fputs_unfiltered (const char *, struct ui_file *);
195 extern int fputc_filtered (int c, struct ui_file *);
197 extern int fputc_unfiltered (int c, struct ui_file *);
199 extern int putchar_filtered (int c);
201 extern int putchar_unfiltered (int c);
203 extern void puts_filtered (const char *);
205 extern void puts_unfiltered (const char *);
207 extern void puts_filtered_tabular (char *string, int width, int right);
209 extern void puts_debug (char *prefix, char *string, char *suffix);
211 extern void vprintf_filtered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);
213 extern void vfprintf_filtered (struct ui_file *, const char *, va_list)
214 ATTRIBUTE_PRINTF (2, 0);
216 extern void fprintf_filtered (struct ui_file *, const char *, ...)
217 ATTRIBUTE_PRINTF (2, 3);
219 extern void fprintfi_filtered (int, struct ui_file *, const char *, ...)
220 ATTRIBUTE_PRINTF (3, 4);
222 extern void printf_filtered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
224 extern void printfi_filtered (int, const char *, ...) ATTRIBUTE_PRINTF (2, 3);
226 extern void vprintf_unfiltered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);
228 extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list)
229 ATTRIBUTE_PRINTF (2, 0);
231 extern void fprintf_unfiltered (struct ui_file *, const char *, ...)
232 ATTRIBUTE_PRINTF (2, 3);
234 extern void printf_unfiltered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
236 extern void print_spaces (int, struct ui_file *);
238 extern void print_spaces_filtered (int, struct ui_file *);
240 extern char *n_spaces (int);
242 extern void fputstr_filtered (const char *str, int quotr,
243 struct ui_file * stream);
245 extern void fputstr_unfiltered (const char *str, int quotr,
246 struct ui_file * stream);
248 extern void fputstrn_filtered (const char *str, int n, int quotr,
249 struct ui_file * stream);
251 extern void fputstrn_unfiltered (const char *str, int n, int quotr,
252 struct ui_file * stream);
254 /* Return nonzero if filtered printing is initialized. */
255 extern int filtered_printing_initialized (void);
257 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
258 extern void gdb_print_host_address_1 (const void *addr, struct ui_file *stream);
260 /* Wrapper that avoids adding a pointless cast to all callers. */
261 #define gdb_print_host_address(ADDR, STREAM) \
262 gdb_print_host_address_1 ((const void *) ADDR, STREAM)
264 /* Convert CORE_ADDR to string in platform-specific manner.
265 This is usually formatted similar to 0x%lx. */
266 extern const char *paddress (struct gdbarch *gdbarch, CORE_ADDR addr);
268 /* Return a string representation in hexadecimal notation of ADDRESS,
269 which is suitable for printing. */
271 extern const char *print_core_address (struct gdbarch *gdbarch,
274 /* Callback hash_f and eq_f for htab_create_alloc or htab_create_alloc_ex. */
275 extern hashval_t core_addr_hash (const void *ap);
276 extern int core_addr_eq (const void *ap, const void *bp);
278 extern CORE_ADDR string_to_core_addr (const char *my_string);
280 extern void fprintf_symbol_filtered (struct ui_file *, const char *,
283 extern void throw_perror_with_name (enum errors errcode, const char *string)
286 extern void perror_warning_with_name (const char *string);
288 extern void print_sys_errmsg (const char *, int);
290 /* Warnings and error messages. */
292 extern void (*deprecated_error_begin_hook) (void);
294 /* Message to be printed before the warning message, when a warning occurs. */
296 extern char *warning_pre_print;
298 extern void error_stream (struct ui_file *) ATTRIBUTE_NORETURN;
300 extern void demangler_vwarning (const char *file, int line,
301 const char *, va_list ap)
302 ATTRIBUTE_PRINTF (3, 0);
304 extern void demangler_warning (const char *file, int line,
305 const char *, ...) ATTRIBUTE_PRINTF (3, 4);
308 /* Misc. utilities. */
310 /* Allocation and deallocation functions for the libiberty hash table
311 which use obstacks. */
312 void *hashtab_obstack_allocate (void *data, size_t size, size_t count);
313 void dummy_obstack_deallocate (void *object, void *data);
316 extern pid_t wait_to_die_with_timeout (pid_t pid, int *status, int timeout);
319 extern int producer_is_gcc_ge_4 (const char *producer);
320 extern int producer_is_gcc (const char *producer, int *major, int *minor);
322 extern int myread (int, char *, int);
324 /* Ensure that V is aligned to an N byte boundary (B's assumed to be a
325 power of 2). Round up/down when necessary. Examples of correct
328 addr = align_up (addr, 8); -- VALUE needs 8 byte alignment
329 write_memory (addr, value, len);
334 sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned
335 write_memory (sp, value, len);
337 Note that uses such as:
339 write_memory (addr, value, len);
340 addr += align_up (len, 8);
344 sp -= align_up (len, 8);
345 write_memory (sp, value, len);
347 are typically not correct as they don't ensure that the address (SP
348 or ADDR) is correctly aligned (relying on previous alignment to
349 keep things right). This is also why the methods are called
350 "align_..." instead of "round_..." as the latter reads better with
351 this incorrect coding style. */
353 extern ULONGEST align_up (ULONGEST v, int n);
354 extern ULONGEST align_down (ULONGEST v, int n);
356 /* Resource limits used by getrlimit and setrlimit. */
358 enum resource_limit_kind
364 /* Check whether GDB will be able to dump core using the dump_core
365 function. Returns zero if GDB cannot or should not dump core.
366 If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected.
367 If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected. */
369 extern int can_dump_core (enum resource_limit_kind limit_kind);
371 /* Print a warning that we cannot dump core. */
373 extern void warn_cant_dump_core (const char *reason);
375 /* Dump core trying to increase the core soft limit to hard limit
378 extern void dump_core (void);
380 /* Return the hex string form of LENGTH bytes of DATA.
381 Space for the result is malloc'd, caller must free. */
383 extern char *make_hex_string (const gdb_byte *data, size_t length);